condition	mean	min	max
4 h after light	5.74222	5.47028	6.01416
8 h after light	5.400925	4.54783	6.25402
12 h after light	5.695845	5.40555	5.98614
4 h after dark	7.8011800000000004	6.63194	8.97042
8 h after dark	7.882815	7.83714	7.92849
12 h after dark	6.9168199999999995	6.41554	7.4181